I think it's important to point out that this disqualification under section 3 of the 14th amendment does not require conviction of a crime. Anyone who has previously taken oath as a member of the US government can be disqualified from holding office if they "have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof." There is enough of an argument that just providing comfort to insurrectionists is enough to disqualify.
https://constitution.congress.gov/browse/amendment-14/section-3/
"Official capacity" has not been defined yet so we don't know what the limits are. We will have to wait and see.